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IDT70T631S10BC Datasheet(PDF) 2 Page - Integrated Device Technology |
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IDT70T631S10BC Datasheet(HTML) 2 Page - Integrated Device Technology |
2 / 27 page IDT70T633/1S Preliminary High-Speed 2.5V 512/256K x 18 Asynchronous Dual-Port Static RAM Industrial and Commercial Temperature Ranges 2 Description The IDT70T633/1 is a high-speed 512/256K x 18 Asynchronous Dual-Port Static RAM. The IDT70T633/1 is designed to be used as a stand-alone 9216/4608K-bit Dual-Port RAM or as a combination MAS- TER/SLAVEDual-PortRAMfor36-bit-or-morewordsystem.Usingthe IDT MASTER/SLAVE Dual-Port RAM approach in 36-bit or wider memory system applications results in full-speed, error-free operation withouttheneedforadditionaldiscretelogic. This device provides two independent ports with separate control, address,andI/Opinsthatpermitindependent,asynchronousaccessfor reads or writes to any location in memory. An automatic power down feature controlled by the chip enables (either CE0 or CE1) permit the on-chip circuitry of each port to enter a very low standby power mode. TheIDT70T651/9hasaRapidWriteModewhichallowsthedesigner to perform back-to-back write operations without pulsing the R/W input eachcycle.Thisisespeciallysignificantatthe8and10nscycletimesof the IDT70T651/9, easing design considerations at these high perfor- mancelevels. The70T633/1cansupportanoperatingvoltageofeither3.3Vor2.5V on one or both ports, controlled by the OPT pins. The power supply for the core of the device (VDD) remains at 2.5V. |
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